DK0731520T3 - Material for use in the manufacture of catalytic electrodes - Google Patents

Material for use in the manufacture of catalytic electrodes

Info

Publication number
DK0731520T3
DK0731520T3 DK96301550T DK96301550T DK0731520T3 DK 0731520 T3 DK0731520 T3 DK 0731520T3 DK 96301550 T DK96301550 T DK 96301550T DK 96301550 T DK96301550 T DK 96301550T DK 0731520 T3 DK0731520 T3 DK 0731520T3
Authority
DK
Denmark
Prior art keywords
manufacture
catalytic electrodes
electrodes
improved
catalytic
Prior art date
Application number
DK96301550T
Other languages
Danish (da)
Inventor
Jan Denton
John Malcolm Gascoyne
David Thompsett
Original Assignee
Johnson Matthey Plc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10770881&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK0731520(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Johnson Matthey Plc filed Critical Johnson Matthey Plc
Application granted granted Critical
Publication of DK0731520T3 publication Critical patent/DK0731520T3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C25B9/23—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/8828—Coating with slurry or ink
    • H01M4/8835—Screen printing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/8828—Coating with slurry or ink
    • H01M4/8839—Painting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/8857—Casting, e.g. tape casting, vacuum slip casting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/8864—Extrusion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8882—Heat treatment, e.g. drying, baking
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0065—Solid electrolytes
    • H01M2300/0082—Organic polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/886—Powder spraying, e.g. wet or dry powder spraying, plasma spraying
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

An improved ink material, particularly for use in printing processes and its use in improved manufacturing processes for higher performance electrodes for application in fuel cells and other electrochemical devices is disclosed.
DK96301550T 1995-03-09 1996-03-06 Material for use in the manufacture of catalytic electrodes DK0731520T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9504713.0A GB9504713D0 (en) 1995-03-09 1995-03-09 Improved electrocatalytic material

Publications (1)

Publication Number Publication Date
DK0731520T3 true DK0731520T3 (en) 2001-07-30

Family

ID=10770881

Family Applications (1)

Application Number Title Priority Date Filing Date
DK96301550T DK0731520T3 (en) 1995-03-09 1996-03-06 Material for use in the manufacture of catalytic electrodes

Country Status (9)

Country Link
US (1) US5716437A (en)
EP (1) EP0731520B1 (en)
JP (1) JP3920374B2 (en)
AT (1) ATE201794T1 (en)
CA (1) CA2171386C (en)
DE (1) DE69613030T2 (en)
DK (1) DK0731520T3 (en)
ES (1) ES2157401T3 (en)
GB (1) GB9504713D0 (en)

Families Citing this family (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19544323A1 (en) * 1995-11-28 1997-06-05 Magnet Motor Gmbh Gas diffusion electrode for polymer electrolyte membrane fuel cells
KR100201572B1 (en) * 1997-04-18 1999-06-15 최수현 Method producing electrode for fuel cell with method mixing coating and rolling
GB9708365D0 (en) * 1997-04-25 1997-06-18 Johnson Matthey Plc Proton conducting membranes
US5910378A (en) 1997-10-10 1999-06-08 Minnesota Mining And Manufacturing Company Membrane electrode assemblies
US5958197A (en) * 1998-01-26 1999-09-28 De Nora S.P.A. Catalysts for gas diffusion electrodes
US7098163B2 (en) * 1998-08-27 2006-08-29 Cabot Corporation Method of producing membrane electrode assemblies for use in proton exchange membrane and direct methanol fuel cells
US20040209965A1 (en) * 1998-10-16 2004-10-21 Gascoyne John Malcolm Process for preparing a solid polymer electrolyte membrane
GB9826940D0 (en) 1998-12-09 1999-02-03 Johnson Matthey Plc Electrode
US6517965B1 (en) * 1999-02-26 2003-02-11 Symyx Technologies, Inc. Platinum-ruthenium-nickel alloy for use as a fuel cell catalyst
DE19910773A1 (en) 1999-03-11 2000-09-28 Degussa Process for applying electrode layers to a band-shaped polymer electrolyte membrane for fuel cells
GB9905950D0 (en) 1999-03-16 1999-05-05 Johnson Matthey Plc Substrates
GB9914499D0 (en) 1999-06-22 1999-08-25 Johnson Matthey Plc Non-woven fibre webs
US6630081B1 (en) * 1999-06-30 2003-10-07 Nagakazu Furuya Process for producing gas diffusion electrode material
US6399233B1 (en) * 1999-07-29 2002-06-04 Technology Management, Inc. Technique for rapid cured electrochemical apparatus component fabrication
US6361892B1 (en) * 1999-12-06 2002-03-26 Technology Management, Inc. Electrochemical apparatus with reactant micro-channels
US6589682B1 (en) * 2000-01-27 2003-07-08 Karen Fleckner Fuel cells incorporating nanotubes in fuel feed
NL1014696C2 (en) * 2000-03-20 2001-09-28 Stichting Energie Manufacture of low-temperature fuel cell electrodes.
WO2001071835A2 (en) * 2000-03-22 2001-09-27 Victrex Manufacturing Limited Membrane/electrode composite
WO2001080342A1 (en) 2000-04-17 2001-10-25 Johnson Matthey Pulic Limited Company Gas diffusion substrate
CN1310358C (en) 2000-06-22 2007-04-11 松下电器产业株式会社 Polymer electrolyte fuel cell, and method for manufacturing electrode thereof, and manufacturing apparatus
GB0016750D0 (en) * 2000-07-08 2000-08-30 Johnson Matthey Plc Improved material for electrode manufacture
GB0016752D0 (en) 2000-07-08 2000-08-30 Johnson Matthey Plc Electrochemical structure
DE60143484D1 (en) 2000-07-27 2010-12-30 City Tech GAS SENSORS
DE10037074A1 (en) 2000-07-29 2002-02-14 Omg Ag & Co Kg Ink for the production of membrane electrode assemblies for PEM fuel cells
DE10037072A1 (en) * 2000-07-29 2002-02-14 Omg Ag & Co Kg Membrane electrode unit for polymer electrolyte fuel cells and process for their production
JP4624528B2 (en) * 2000-08-01 2011-02-02 トヨタ自動車株式会社 Fuel cell component performance evaluation apparatus and performance evaluation method
DE10050467A1 (en) 2000-10-12 2002-05-16 Omg Ag & Co Kg Method for producing a membrane electrode assembly for fuel cells
US6605379B1 (en) * 2000-11-03 2003-08-12 Grafttech Inc. Hydrophobic fuel cell electrode
GB0027119D0 (en) 2000-11-07 2000-12-20 Johnson Matthey Plc Gas diffusion substrate
US6696382B1 (en) 2000-11-14 2004-02-24 The Regents Of The University Of California Catalyst inks and method of application for direct methanol fuel cells
KR100423843B1 (en) * 2001-09-25 2004-03-22 한국과학기술연구원 Manufacturing method of electrode for fuel cell and electrode using the same
DE10159476A1 (en) * 2001-12-04 2003-07-17 Omg Ag & Co Kg Process for the manufacture of membrane electrode assemblies for fuel cells
TWI266655B (en) * 2002-02-26 2006-11-21 Du Pont Production of catalyst coated membranes
EP1387422B1 (en) 2002-07-31 2016-04-06 Umicore AG & Co. KG Process for the manufacture of catalyst-coated substrates
DE60230979D1 (en) * 2002-07-31 2009-03-12 Umicore Ag & Co Kg Aqueous catalyst inks and their use in the preparation of catalyst coated substrates
US20040072044A1 (en) * 2002-10-11 2004-04-15 John Rusek Direct hydrogen peroxide fuel cell utilizing proton-donating fuel
US7344799B2 (en) * 2002-10-11 2008-03-18 Swift Enterprises, Ltd. Direct hydrogen peroxide fuel cell
JP2004241362A (en) * 2002-12-09 2004-08-26 Toyota Motor Corp Membrane electrode junction and manufacturing method thereof
US20040107869A1 (en) * 2002-12-10 2004-06-10 3M Innovative Properties Company Catalyst ink
US6928893B2 (en) 2003-01-15 2005-08-16 General Motors Corporation Method of making a gas diffusion media and quality controls for same
US7107864B2 (en) 2003-01-15 2006-09-19 General Motors Corporation Quality control methods for gas diffusion media
JP2004281152A (en) * 2003-03-14 2004-10-07 Toyota Motor Corp Apparatus and method foe manufacturing electrode
JP2004319139A (en) * 2003-04-11 2004-11-11 Toyota Motor Corp Membrane electrode assembly and its manufacturing method
DE10320320B4 (en) * 2003-05-06 2007-08-16 Forschungszentrum Jülich GmbH Catalyst layer, suitable catalyst paste, as well as production process thereof
GB0411733D0 (en) 2004-05-26 2004-06-30 Johnson Matthey Plc Anode structure
GB0419062D0 (en) 2004-08-27 2004-09-29 Johnson Matthey Plc Platinum alloy catalyst
GB0421254D0 (en) 2004-09-24 2004-10-27 Johnson Matthey Plc Membrane electrode assembly
JP2008534719A (en) 2005-03-30 2008-08-28 ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト Ink for producing catalyst layer
GB0510119D0 (en) * 2005-05-18 2005-06-22 Johnson Matthey Plc Polymer dispersion and electrocatalyst ink
US8115373B2 (en) 2005-07-06 2012-02-14 Rochester Institute Of Technology Self-regenerating particulate trap systems for emissions and methods thereof
CA2615492C (en) 2005-07-15 2011-07-19 Jsr Corporation Electrode electrolyte for solid polymer-type fuel cell
GB0518635D0 (en) * 2005-09-13 2005-10-19 Johnson Matthey Plc Catalyst
DE102005054149A1 (en) * 2005-11-14 2007-05-16 Basf Ag Amine-containing catalyst ink for fuel cells
CN100517820C (en) * 2005-12-16 2009-07-22 中国科学院大连化学物理研究所 Ordered membrane electrode of proton-exchange membrane fuel battery, preparation and application thereof
GB0601943D0 (en) 2006-02-01 2006-03-15 Johnson Matthey Plc Microporous layer
JP5298405B2 (en) * 2006-04-14 2013-09-25 トヨタ自動車株式会社 Manufacturing method of membrane electrode assembly for fuel cell
GB0614909D0 (en) 2006-07-27 2006-09-06 Johnson Matthey Plc Catalyst
GB0617806D0 (en) 2006-09-11 2006-10-18 Johnson Matthey Plc Fuel cell assembly
GB0714460D0 (en) 2007-07-25 2007-09-05 Johnson Matthey Plc Catalyst
KR101021115B1 (en) * 2008-05-06 2011-03-14 현대자동차주식회사 Manufacturing method Catalyst layer of membrane electrode assembly
US9093685B2 (en) * 2009-01-20 2015-07-28 Los Alamos National Security, Llc Methods of making membrane electrode assemblies
GB2468360A (en) * 2009-03-06 2010-09-08 Life Safety Distribution Ag Ionic liquid electrolyte
WO2011003884A1 (en) 2009-07-07 2011-01-13 Basf Se Ink comprising polymer particles, electrode, and mea
US9325017B2 (en) * 2009-07-28 2016-04-26 GM Global Technology Operations LLC Method for controlling ionomer and platinum distribution in a fuel cell electrode
EP2460211A1 (en) * 2009-07-31 2012-06-06 ReVolt Technology Ltd Metal-air battery with ion exchange material
GB0914562D0 (en) 2009-08-20 2009-09-30 Johnson Matthey Plc Catalyst layer
GB0921996D0 (en) 2009-12-17 2010-02-03 Johnson Matthey Plc Catayst layer assembley
EP2553751A4 (en) 2010-04-01 2014-07-16 Trenergi Corp High temperature membrane electrode assembly with high power density and corresponding method of making
GB201021352D0 (en) 2010-12-16 2011-01-26 Johnson Matthey Plc Catalyst layer
GB2490300A (en) 2011-02-08 2012-10-31 Johnson Matthey Fuel Cells Ltd Catalyst for fuel cells
JP5494585B2 (en) * 2011-07-27 2014-05-14 トヨタ自動車株式会社 Catalyst ink for fuel cell electrode, membrane electrode assembly, fuel cell
GB201116713D0 (en) 2011-09-28 2011-11-09 Johnson Matthey Plc Catalyst
JP6149695B2 (en) * 2013-11-06 2017-06-21 トヨタ自動車株式会社 Manufacturing method of membrane-electrode assembly for fuel cell
GB201405209D0 (en) 2014-03-24 2014-05-07 Johnson Matthey Fuel Cells Ltd Process
GB201405210D0 (en) 2014-03-24 2014-05-07 Johnson Matthey Fuel Cells Ltd Process
DE112015001444T5 (en) 2014-03-24 2016-12-29 Johnson Matthey Fuel Cells Ltd. Membrane-seal arrangement
JP5812141B2 (en) * 2014-03-28 2015-11-11 ダイキン工業株式会社 Liquid discharge device
US10119932B2 (en) 2014-05-28 2018-11-06 Honeywell International Inc. Electrochemical gas sensor
GB201413794D0 (en) 2014-08-04 2014-09-17 Johnson Matthey Fuel Cells Ltd And Universit� De Montpellier Ii And Ct Nat De La Rech Scient Membrane
GB201415846D0 (en) 2014-09-08 2014-10-22 Johnson Matthey Fuel Cells Ltd Catalyst
JP6196201B2 (en) * 2014-09-25 2017-09-13 本田技研工業株式会社 Method for producing catalyst ink
GB201420934D0 (en) 2014-11-25 2015-01-07 Johnson Matthey Fuel Cells Ltd Membrane-seal assembly
GB201515870D0 (en) 2015-09-08 2015-10-21 Johnson Matthey Fuel Cells Ltd Process
GB201900646D0 (en) 2019-01-17 2019-03-06 Johnson Matthey Fuel Cells Ltd Membrane
GB201914335D0 (en) 2019-10-04 2019-11-20 Johnson Matthey Fuel Cells Ltd Membrane electrode assembly

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL160013C (en) * 1968-11-26 1979-09-17 Du Pont PROCESS FOR PREPARING SOLUTIONS OF A SULFONYL GROUPS CONTAINING FLUORO CARBON POLYMER.
JPS5827352B2 (en) * 1979-08-31 1983-06-08 旭硝子株式会社 Manufacturing method of ion exchange membrane with electrode layer attached
BR8202395A (en) * 1981-05-01 1983-04-12 Du Pont MEMBRANE COMPOSITE SET / ELECTROCHEM CELL ELECTRODE AND ELECTROLYSIS PROCESS
JPS58147575A (en) * 1982-02-26 1983-09-02 Tokuyama Soda Co Ltd Production of joined body of porous electrode and ion exchange membrane
EP0305565B1 (en) * 1987-08-19 1993-02-24 The Dow Chemical Company Current collector bonded to a solid polymer membrane
FR2621043B1 (en) * 1987-09-25 1992-01-17 Atochem FLUORINATED ION EXCHANGE POLYMERS CONTAINING METAL AGGREGATES IN MASS OR SURFACE AND METHOD FOR OBTAINING THEM
US5211984A (en) * 1991-02-19 1993-05-18 The Regents Of The University Of California Membrane catalyst layer for fuel cells
JPH05144444A (en) * 1991-11-25 1993-06-11 Toshiba Corp Fuel cell and electrode manufacturing method
US5272017A (en) * 1992-04-03 1993-12-21 General Motors Corporation Membrane-electrode assemblies for electrochemical cells
GB9213124D0 (en) * 1992-06-20 1992-08-05 Johnson Matthey Plc High performance electrode
US5415888A (en) * 1993-04-26 1995-05-16 E. I. Du Pont De Nemours And Company Method of imprinting catalytically active particles on membrane
US5330860A (en) * 1993-04-26 1994-07-19 E. I. Du Pont De Nemours And Company Membrane and electrode structure
US5523177A (en) * 1994-10-12 1996-06-04 Giner, Inc. Membrane-electrode assembly for a direct methanol fuel cell

Also Published As

Publication number Publication date
GB9504713D0 (en) 1995-04-26
CA2171386C (en) 2010-02-09
EP0731520A1 (en) 1996-09-11
JP3920374B2 (en) 2007-05-30
EP0731520B1 (en) 2001-05-30
DE69613030D1 (en) 2001-07-05
JPH08259873A (en) 1996-10-08
US5716437A (en) 1998-02-10
ATE201794T1 (en) 2001-06-15
ES2157401T3 (en) 2001-08-16
DE69613030T2 (en) 2001-10-31
CA2171386A1 (en) 1996-09-10

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